Title:[1198] Venus from Magellan radar images Caption:A false color image of Venus constructed primarily from radar data collected by the Magellan mission between 1990 and 1993. Less detailed information from Pioneer Venus Orbiter and Venera missions has been used to fill in some gaps. It is a view from above the equator at 180 degrees east longitude. The bright areas usually indicate rough surfaces. The dark areas are smooth or possibly covered with dust. Copyright: Credit:NASA

Title:[0310] Venus from 450,000 miles Caption:Venus imaged in ultraviolet light by the Mariner 10 spacecraft on 7 February 1974 from a distance of 450,000 miles. The image is constructed from a mosaic of computer-enhanced and retouched frames. The cloud bands show up in ultraviolet light but the opaque atmosphere is almost featureless in visible light. Copyright: Credit:NASA

Title:[1192] A Venusian lava flow southeast of Navka Planitia Caption:A Magellan radar image showing a smooth lava flow (dark) southeast of Navka Planitia. The flow is over 30 km (19 miles) long and 1 to 2 km (0.6 to 1.2 miles) wide. Copyright: Credit:NASA

Title:[1196] Alpha Regio in the Lavinia region of Venus Caption:A Magellan radar mosaic showing part of Alpha Regio in the Lavinia region on Venus, covering an area about 125 km by 150 km (78 miles by 93 miles). The complex pattern of intersecting ridges and valleys is called "tessera." Copyright: Credit:NASA

Title:[0199] Arachnoid formations on Venus Caption:A Magellan radar mosaic of volcanic features known as "arachnoids" so far found only on Venus. Those visible here range in size from 50 to 230 km (31 to 143 miles). Copyright: Credit:NASA

Title:[0731] Impact crater on Venus Caption:A Magellan radar image of a dark-haloed impact crater 38 km in diameter on Lavinia Planitia. Copyright: Credit:NASA

Title:[0203] Dome-like hills on Venus Caption:A Magellan radar image of the eastern edge of Alpha Regio. The dome-like hills, which are volcanic features, are about 25 km (15 miles) in diameter and rise to a maximum height of 750 meters (2475 feet). Copyright: Credit:NASA

Title:[0724] Sacajawea Patera Caption:A Magellan radar image of the venusian volcanic crater Sacajawea Patera, shown in false color. Copyright: Credit:National Optical Astronomy Observatories

Title:[0732] Sif Mons Caption:A false color perspective view of the venusian volcano Sif Mons, created from Magellan radar images. The volcano is 300 km in diameter and 2 km high. Copyright: Credit:NASA

Title:[0734] The SE rim of Lakshmi Planum and Danu Montes Caption:A false-color perspective view of the SE rim of Lakshmi Planum created from Magellan radar images. The Danu Montes (upper center) rise 1.5 km above the plateau. Copyright: Credit:NASA

Title:[0729] Fractures and lava-flooded crater on Venus Caption:A Magellan radar image of Venus showing a fractured plain and a 300-km diameter lava-flooded crater. Copyright: Credit:NASA

Title:[1194] Freyja Montes in Ishtar Terra Caption:A Magellan radar image of Venus showing a region on the eastern flanks of Freyja Montes in Ishtar Terra. The image is dominated by a fractured dome, 70 by 125 km (44 by 78 miles). The texture is the result of two intersecting sets of fractures. Copyright: Credit:NASA

Title:[0722] The venusian impact crater Aurelia Caption:A Magellan radar image of Venus showing the impact crater Aurelia, diameter 32 km. Copyright: Credit:NASA

Title:[0200] Impact craters and volcanoes on Venus Caption:A Magellan radar mosaic of Venus compiled from 300 image strips. (Black strips indicate no data available.) The area is in the equatorial region and encompasses Eistla Regio and Tinatin Planitia. Numerous impact craters and volcanic coronae are visible. Copyright: Credit:NASA

Title:[0201] Lava flowing over venusian plains Caption:A Magellan radar image of Venus showing lava flows in the Lada region. Copyright: Credit:NASA

Title:[1197] Gula Mons, Sif Mons and lava plains on Venus Caption:A false-color perspective view of Venus created from Magellan radar data. Gula Mons (3 km/1.8 miles high) is on the left near the horizon and Sif Mons (2 km/1.2 miles high) is towards the right. The distance between Gula and Sif is about 730 km (453 miles). The topographic relief is exaggerated by a factor of about 20. Copyright: Credit:NASA

Title:[1200] Maat Mons and fractured volcanic plains on Venus Caption:A false-color perspective view of Venus created from Magellan radar data. It shows Maat Mons, a shield volcano 8 km (5 miles) high, which is the largest on Venus. The topographic relief is exaggerated by a factor of 10. Copyright: Credit:NASA

Title:[0723] Ridge belts in the Lavinia Region Caption:A Magellan radar image of Venus showing ridge belts in the Lavinia region. Copyright: Credit:NASA

Title:[1199] Sapas Mons and Maat Mons on Venus Caption:A false-color perspective view of Venus created from Magellan radar data. The volcano Sapas Mons in the foreground is 400 km (248 miles) wide and 1.5 km (0.9 miles) high. Maat Mons is on the horizon in the background. The topographic relief is exaggerated by a factor of about 10. Copyright: Credit:NASA

Title:[0202] Sapas Mons volcano Caption:A Magellan radar image in false color of the venusian volcano Sapas Mons, which lies in Atla Regio. Sapas Mons is about 400 km (249 miles) across and rises to 1.5 km (0.9 miles). There are numerous overlapping lava flows on the sides of the volcano. At the summit are two smooth, flat-topped mesas, which are darker in appearance. Copyright: Credit:NASA

Title:[0720] Venera 8 landing site Caption:A Magellan radar mosaic of part of the Navka region 400 km wide, showing the landing site of the Soviet Venera 8 craft. Copyright: Credit:NASA

Title:[1195] The crater Cleopatra and the Lakshmi region Caption:A Magellan radar mosaic of the Lakshmi region of Venus. The prominent circular feature is the impact crater Cleopatra, which is on the eastern slopes of Maxwell Montes. Cleopatra is about 100 km (62 miles) across and 2.5 km (1.6 miles) deep Copyright: Credit:NASA

Title:[1193] Three meteorite impact craters in the Lavinia region Caption:A Magellan radar mosaic of the Lavinia region of Venus showing three large impact craters with diameters between 37 and 50 km (23 and 31 miles). Volcanic domes are also visible in the southeastern part of the mosaic. Copyright: Credit:NASA

Title:[3020] Venus in ultraviolet light Caption:A Hubble Space Telescope image of Venus taken in ultraviolet light on 24 January 1995 when Venus was 114 million km (71 million miles) away. Patterns in the opaque clouds of sulfuric acid vapor are revealed in the ultraviolet. Copyright: Credit:L. Esposito and NASA